Rogelj, J., Luderer, G., Pietzcker, R. C., Kriegler, E., Schaeffer, M., Krey, V., Riahi, K. (2015): Energy system transformations for limiting end-of-century warming to below 1.5 °C. - Nature Climate Change, 5, 6, 519-527.https://doi.org/10.1038/nclimate2572